Buttholes: how the anus made us human
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AsapSCIENCE
4.9 • 2.6K Ratings
🗓️ 11 February 2026
⏱️ 45 minutes
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Summary
Buttholes may be the key to human evolution. It might sound insane, but the need for animals to evolve relied on us being a "tube" - what makes us a tube? Having a mouth and an anus. It turns out our buttholes are potentially an integral part of our ability to evolve consciousness? What is going on here?
Today we will explain the science of buttholes. We will explain how they work, some fascinating facts and also relate them to your life now - and how they evolved millions of years ago.
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Transcript
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| 0:00.0 | controversial subjects with the facts can be tense, |
| 0:02.6 | but we are a subscience here to make things make sense. |
| 0:06.1 | Today we are talking about the human anus, |
| 0:09.0 | how scientifically, evolutionarily, it is amazing. |
| 0:12.4 | It is an incredible feat of science. |
| 0:14.5 | We're going to be going through a lot of interesting facts. |
| 0:16.9 | And then relating to how your ability to feel consciousness |
| 0:20.2 | maybe came from the fact that you eventually got a butthole. Wow. Wow. Wow. Wow. Wow. Wow. I wish I was lying. I mean, like this is, I think, a safe for, I mean, it's going to be about butts, obviously, and assholes. But, like, it's a science topic. Yeah. Yeah. I'm so excited. It's actually like, it's so interesting and I know it's taboo, but, um, the evolution of it, but also just like extremely interesting science behind what your butt can do. And not even in a sexual way. But it did. It's actually not in a sexual way at all. Yeah. That's all I'm trying to make clear. We'll do a separate video on that. We've done many other videos on that. And I hate, and I hate the word poop and poo and Mitch uses them, but we are not using those words in this entire episode. Greg, like, has to say, I want shit. Or like, dukechie took a dump, like anything else. Just don't say, you say, you're like, poo. Oh my God. What you're talking about poo the bear? We're not talking about it. And one quick aside is, uh, we've mentioned it last week, but we're on the lookout for, um, some hired help with SIDO podcast. So if you're interested in helping produce and create and edit and stuff like that, um, you can go to ASAPScience.com slash jobs. |
| 1:29.4 | There's a job posting there. |
| 1:31.1 | Reach out to us an email to send your stuff to. |
| 1:33.8 | And yeah, we'd love to hear from you and add some people to the team to make it possible to keep going. |
| 1:39.2 | We need A you with that. |
| 1:40.4 | But no assholes. |
| 1:41.9 | Yeah. |
| 1:42.6 | Okay. |
| 1:43.2 | Okay. |
| 1:43.2 | So your butthole. It's an external body orifice at the exit of the |
| 1:49.3 | digestive tract, the opposite end from the mouth, which I always think is important to remember. |
| 1:55.1 | Yeah, that's really important. And its function is to facilitate the expulsion of solid waste that remains after digestion. And it's only in most mammals, invertebrates, and most fish, birds, reptiles, amphibians, they have cloacas, which I think is also important to remember. And birds, like, shouldn't pee out of the same place. Well, the cloaca. So are you going to start by giving us a little bit of like a evolutionary history |
| 2:19.1 | do you want me to do that because it's like i can just do that yeah i think that would be really cool |
| 2:23.2 | okay so okay exciting like how butts evolved not butts how ass holes evolved okay so think about it |
| 2:32.3 | there's these classifications in science of all the living things on the planet you've got plants |
... |
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